Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...193...27m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 193, no. 1-2, March 1988, p. 27-39.
Astronomy and Astrophysics
Astronomy
32
Infrared Astronomy, Peculiar Galaxies, Radio Galaxies, Spaceborne Astronomy, Astronomical Maps, Cosmic Dust, Far Infrared Radiation, Galactic Nuclei, Infrared Astronomy Satellite, Star Formation
Scientific paper
The authors present far infrared observations of the peculiar radio galaxy Cen A. These were obtained using the high resolution mapping "Deep Sky" mode of the IRAS satellite. The intensity grids obtained were in the same four bands as the IRAS point source survey. It can be seen from these grids that the emission is centred on the nucleus of Cen A. The majority of the emission is seen to follow the star formation regions along the NW and SE edges of the dust lane. Warping in the disc region is only readily apparent in the 12 μm maps where the resolution is highest. The grids allow an estimate of dust masses and star formation rates to be obtained, which show that large scale star formation is implied in the disc region. A comparison of the emission seen in the disc region with disc galaxies shows a probable 12 μm excess which may well be due to the photospheres of large numbers of late-type M stars.
Dickens R. J.
Marston Anthony P.
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